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Finding the Fourth Proportional to 447,667.78, 671,079.54 and 222,815.63

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Solution

The fourth proportional to 447,667.78, 671,079.54 and 222,815.63 is: 334,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,667.78 : 671,079.54 = 222,815.63 : x
  2. Step 2: Convert to fraction form
    447,667.78/671,079.54 = 222,815.63/x
  3. Step 3: Cross multiply
    447,667.78x = 671,079.54 × 222,815.63
  4. Step 4: Simplify right side
    447,667.78x = 149,527,010,485.21
  5. Step 5: Solve for x
    x = 149,527,010,485.21/447,667.78
  6. Step 6: Final answer
    x = 334,013.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.